Device for forming sheet-metal pans



M. KENNEDY. Device for Forming Sheet-Metal Pans.

No. 224,922. Patented Feb, 24, 1880.

NIPEFERS, PHOTO-UTHOGRAPHER, WASH NGYON D C Massachusetts, have UNITED STATES PATENT OFFICE.

MATTHEW KENNEDY, OF BOSTON, MASSACHUSETTS.

I DEVICE FOR FORMING SHEET-METAL PANS.

SPECIFICATION forming part of Letters Patent No. 224,922, dated February 24, 1880. Application filed December 22, 1879.

To all whom it may concern:

Be it known that I, MATTHEW KENNEDY, of Boston, in the county of Suffolk, State of invented a certain new and useful Improvement in Devices for Form .ing Sheet-Metal Fans, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which my invention appertains to make and use the same, reference being had to the accompan yin gdrawin gs, forming a part of this specification, in which- 1 Figure l is an isometrical perspective View,

showing that portion of i the device used in forming the sides of the pan. Fig. 2 is a like view, showing that portion usedin forming the ends of the same. Fig. 3 is a side elevation of the device shown in Fig. 2. Fig. 4 is aplan view of the blank from which the pan is made, and Fig. 5 a view showing the pan partially finished, or as it leaves the device shown in Fig. 2.

Like letters indicate corresponding parts in the different figures of the drawings.

My invention relates to that class of panforming mechanism used in the manufacture of sheet-metal pans having straight sides and ends; an ditconsists in a novel construction and 3 I Myimproved device consists,

arrangement ofthe parts, as" hereinafter fully set forth andclaimed, by whicha simpler, cheaper, and more effective device 'of this character is produced than is nowin ordinary use.

substantially,

of the two jaws A B, connected by the bolts" and nuts 0 c, the jaw B being provided with a longitudinal groove, D, running the entire length of its inner face in parallelism with its upper edge, a, which is inclined or beveled to correspond with abevel or incline,'d, on the upper edge of thejaw A, as shown.

The jaws are equal in length in each pair,

respectively, and have sloping or, inclined ends m m, which correspond with theflare or incline to be given the sides and ends of the pan. y

In the use of my invention the edges 2 z for receiving the wire are first turned on the blank projecting equidistant at either end of the jaws. The jaws are now caused to close and grasp the blank firmly by means of a vise, (not shown,) in which they are designed to be held, and the blank is bent down or turned over onto the inclined edge at by means of a small piece of board or any suitable implement for the purpose held in the hands of the workman, thus forming or raising the side of the pan, the incline or flare of the side being governed by the bevel or incline d. The opposite side of the pan is then formed or turned up in the same manner, after which the blank is transferred to the device shown in Fig. 2, by means of which the ends of the pan are formed in substantially the same manner as the sides.

The ends at m of the jaws in Fig. 1 correspond with the incline or flare of the ends of the pan, and the ends at m of thejaws in Fig.

mered down, or flattened and brought into line. with the,sides, the inclined ends m m being used in place of the stake usually employedfor this purpose.

It will be understood that the bolts 0 c are fastened in the jaw 13, but work loosely in holes through the jaw A, the nuts not being fully turned down, thus enabling the lastnamed jaw to slide freely on the bolts in grasping the blank, but keeping them in proper position in relation to each other and to the work being done.

The device shown is. designed for making a rectangular pan, or one in which the sides are longer than the ends. If the pan is to be square, it will be obvious that one set of jaws vided with the groove D and connected to the Will answer for turning both ends and sides. jaw A by means of the bolts and nuts 0 c, all I10 Having thus explained my invention, What constructed and arranged to operate substan- 1 claim istially as specified.

The improved device for forming sheet- MATTHEW KENNEDY. metal pans described, the same consisting of Witnesses:

vthe jaws A B, having the beveled edges a d O. A. SHAW,

and inclined ends m m, the jaw B being pro- JAMES M. PALMER. 

